Sprinkler



E. HOXIE.

(No Model.)

SPRINKLER;

No. 458,628. Patented Sept. 1, 1891.

INVENTEIR WITNESSES- 1 UNITED STATES PATENT QFFICE.

EDMUND HOXIE, OF EVERETT, MASSACHUSETTS.

SPRINKLER.

SPECIFICATION forming part of Letters Patent No. 458,628, datedSeptember 1, 1891.

Application filed December 10, 1890. Serial No. 374,225. (No model.)

To all whom it may concern:

Be it known that I, EDMUND IIOXIE, a citizenof the United States,residing at Everett, in the county of Middlesex and State ofMassachusetts, have invented a new and useful Improvement in AutomaticSprinklers, of which the following is a specification, reference beinghad to the accompanying drawings.

The object of my invention is an automatic sprinkler in which the valvewill be securely held to its seat until the solder, which maintainscertain parts of the sprinkler in the required position, be fused, whensaid parts will readily and quickly fall apart to release the valve.

The invention consists in the devices and combinations of deviceshereinafter set forth, and specifically pointed out in the claims.

In the drawings, Figures 1 and 2 are elevations taken at right angles toeach other. of an automatic sprinkler embodying my invention. Fig. 3 isa central section taken in the direction of line 1 1 in Fig. 2.

At A is shown an end of a pipe conduit or nozzle, in which is avalve-seat a, on which is the valve B. To the nozzle is connected adistributer formed by the plates 0 and D, joined by the connectingrodsb. On the plate D, I screw a yoke E, providedwith the standards c andcross-bar (Z. I employ a knee joint, the lower limb F of which bearsagainst: the valve and the upper limb G against the cross-bar (Z at c.This upper limb may consist of simple straight piece, as shown. Thelower limb F has an arm H, which has two extensions f and There isanother piece I, which is provided with a weight it 'at one end, theother part being extended to form a longer portion 1'. The two pieces FH and I are soldered together by easily-fusible metal at j and To. Thesetwo pieces when soldered together form one piece, which may be regardedas a compound lever, which has a fulcrum or bearing-point on the yoke E,as at L \Vhen the two pieces E II and I are separated, as by the meltingof the solder at j and 7:, they may be considered as two levers.

The parts of the sprinkler are set for operation in the relativeposition shown, the bearing-point m of one limb of the knee-joint on theother being a little out of a straight line extending from thebearing-point n of the lower limb on the valve to the bearing-point e ofthe upper limb on the cross-bar d. The yoke E is screwed downsufficiently to cause the valve to press, as required, on its seat,which may be done, since there will be the required resistance againstthe knocking down of the knee-joint at the point at Zby means of thecompound lever. Upon the melting of the solder at j and 7.: theresistance just set forth will be destroyed, so that the valve will bereadily lifted by the water under the same, and which is in theconduit-pipe underpressure. The pressure on the valve by means of theknee-joint and compound lever will be the more quickly relieved, owingto the fact that the weight h will act to carry this end of the lever Idirectly downward, and hence cause the end 1' to fly outward from thepath of the other lever H. Greater aid, whereby the pressure on thevalve will be relieved, will arise from the fact that the long arm of helever I is soldered to the short arm of the lever H, as at j, so thatthis joint will the more quickly break on the melting of the solder. Thesolder at 7c is mainly for the purpose of assistin g to maintain a trueposition of parts of the device, and may be dispensed with; but I preferto use it, and in such a manner as to provide a joint at 7c, weakcompared with the one atj. Furthermore, it will appear that, owing tothe two levers I and II and the manner and places of joining them toform the compound lever, the solder joints may be so exposed as to bereadily broken by the action of the heat, and therefore that thesprinkler will be very effective to render the required service.

I claim as my inveution- 1. In combination with a nozzle, a valvetherefor, and a yoke secured thereto, the limbs of a knee-joint to presson the valve and the yoke to hold the valve on its seat, and a piece orlever soldered to an arm of one of said limbs to form a compound leverhaving a fulcrum on said yoke, substantially as and for the purpose setforth.

In combination with a nozzle, a yoke secured thereto provided with across-piece (Z and a valve, a knee-joint formed of limbs F and G, an armH, of one piece with the limb F, and a lever I, soldered to the lever Hand having a fulcrum on said yoke,substantially as specified.

3. The combination of a nozzle, a yoke secured thereto, a valve, aknee-joint formed of limbs F and G, one of which is of one piece with anarm H, and a lever I, soldered to the arm H, provided With a Weight h,and having a fulcrum on the yoke, substantially as set forth.

4. The combination of a nozzle, a valve therefor, plates secured to thenozzle to form a distributer, a yoke secured to the nozzle, 1imbs of aknee-joint located between said yoke and the valve, and a piece or leversol dered to an arm of one of said limbs to form a compound lever whichhas a fulcrum on said yoke, substantially as described.

. EDMUND HOXIE. Witnesses:

WALTER S. HILL, EDW. DUMMER.

